This is an auxiliary template of Template:Rnd, called if the number, after rounding, is 1e9 or more, or less than 1e-4.
Its first parameter is the rounded number, its second the rounding parameter, the third parameter the order of magnitude, and as fourth parameter "+" or "-".
It calls {{rnd/-}} with as parameters the significand and the number of decimals of the significand to be displayed, to add trailing zeros, and calls {{rnd/e+}} or {{rnd/e-}} to express the number in scientific notation.
Examples
सम्पादन गर्नुहोस्{{rnd/d|1540000000|-7|9|+}}
→ 1.54×109{{rnd/d|1542689271|2|9|+}}
→ 1.54268927100×109{{rnd/d|.08|5|-2|+}}
→ 8.000×10-2